Is that part number actually the PSE pump? It would have a bulge in the housing that looks like there would be an electric motor underneath, and vacuum lines attach to it to run the vac actuators. That is usually the heart of the anti-theft system. It does need to be version coded. i don't believe there is any engine interface. I believe it can shut off the fuel pump, but only in an accident, it has it's own crash sensor to do this. It will also activate the hazards in case of a crash, and unlock the doors if they were locked. As far as anti-theft systems for the engine, the smart key has that pretty well covered, the engine control unit won't be released to operate without the EIS (Electronic Ignition Switch) giving it's official okey dokey......Gilly